{"product_id":"nilkatss-20mm-ball-mount-extension-arm-2-pack-dual-socket-adjustable-aluminum-with-360-rotation","title":"Nilkatss 20mm Ball Mount Extension Arm (2-pack) — Dual-Socket Adjustable Aluminium with 360° Rotation","description":"\u003cp\u003e\u003cstrong\u003eNilkatss 2pcs 20mm Ball Mount Extension Arm is a dual-socket adjustable aluminum extension that expands and repositions devices attached to 20mm-ball mounts for precise, stable positioning.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need extra reach or finer angle control for a phone holder, action camera, or other accessory that uses a 20mm (0.787\") ball socket, these two extension arms add flexible length and two fully rotating joints. Built from aluminum alloy with knurled locking knobs and anti-slip ball heads, the arms are intended for outdoor and automotive use where vibration and exposure can challenge lesser fittings. Confirm your mount is the 20mm size before ordering—this product is not compatible with 17mm, 22mm, 25mm or 1-inch (25.4mm) systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this extension arm change device placement?\u003c\/h3\u003e\n\u003cp\u003eThe dual-joint design gives you two pivot points to move a device closer, farther, higher, or lower without changing the base mount. Each joint rotates 360°, letting you fine-tune tilt and orientation so the screen or lens faces exactly where you need it.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdd or remove links to change overall arm length for reach or compact storage\u003c\/li\u003e\n  \u003cli\u003e360° rotation at both ball joints for unrestricted positioning\u003c\/li\u003e\n  \u003cli\u003eKnurled locking knobs provide secure hold when tightened\u003c\/li\u003e\n  \u003cli\u003eAnti-slip ball head helps keep phones and cameras stable during motion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fit my existing setup and how do I confirm compatibility?\u003c\/h3\u003e\n\u003cp\u003eThis product is specifically made for mounts that use a 20mm (0.787\") ball socket. Before buying, measure your mount with calipers or a ruler—Nilkatss includes a visual measurement guide in the product images to help identify a 20mm ball correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOnly compatible with 20mm ball sockets; not for 17mm, 22mm, 25mm, or 1-inch (25.4mm) balls\u003c\/li\u003e\n  \u003cli\u003eVisual sizing guide included in images to assist measurement\u003c\/li\u003e\n  \u003cli\u003eUse calipers or a ruler to confirm ball diameter before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and secure is the construction for active use?\u003c\/h3\u003e\n\u003cp\u003eEach arm is made from high-quality aluminum alloy to resist corrosion and handle off-road or exposed conditions better than plastic alternatives. The anti-slip ball head and textured knobs are designed to maintain grip under vibration, though heavier devices may require periodic re-tightening during long, rough trips.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum alloy rods for strength and weather resistance\u003c\/li\u003e\n  \u003cli\u003eKnurled knobs for positive, slip-resistant locking\u003c\/li\u003e\n  \u003cli\u003eAnti-slip ball head for improved device retention\u003c\/li\u003e\n  \u003cli\u003ePeriodic re-tightening recommended for heavy or vibrating loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is assembly and what adjustments can I make?\u003c\/h3\u003e\n\u003cp\u003eAssembly is straightforward: attach the extension to your existing 20mm mount, add or remove linkage to set the desired length, then lock each joint with the knobs. The two joints let you pivot left\/right, up\/down, and rotate the device without interfering with vents or lines of sight.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChoose length by adding or removing linkage and ball joints\u003c\/li\u003e\n  \u003cli\u003eBoth joints tighten independently for customized stiffness\u003c\/li\u003e\n  \u003cli\u003eCompatible with phones, GoPros, and accessories that accept 20mm ball mounts\u003c\/li\u003e\n  \u003cli\u003eKeep mounting surfaces clean and dry for best grip performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: riders, drivers, and outdoor creators who already own a 20mm-ball mounting system and want improved reach, adjustment, and stability for phones, action cameras, or accessories. It suits commuters who need better sightlines, drivers who want a tidier cockpit position, and hobbyists mounting cameras or lights where fine angle control matters. If your mount is not 20mm, seek the correct sized extension instead of this model.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this compatible with 1-inch ball mounts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These extension arms are made exclusively for 20mm (0.787\") ball sockets and do not fit 1-inch or other sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need tools to install and adjust the arm?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No specialized tools are required; hand-tighten the knurled locking knobs. Periodic re-tightening may be needed for heavy or vibrating loads.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nilkatss","offers":[{"title":"Default Title","offer_id":55161658769751,"sku":"B0F2HXH4H5","price":29.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/nilkatss-front-view-extension-arms.jpg?v=1790330996","url":"https:\/\/britishgarage.co.uk\/products\/nilkatss-20mm-ball-mount-extension-arm-2-pack-dual-socket-adjustable-aluminum-with-360-rotation","provider":"British Garage","version":"1.0","type":"link"}