Snail Lock Velcro Backer Plate Free Snail Lock Velcro Backer Plate Description Snail Lock backed velcro plate Super Adhesive used to prevent separation of Velcro Available Sizes 4″ (100mm) Diametre / Snail Lock 5″ (125mm) Diametre / Snail Lock SKU: VBSL Category: Couplings. Contact Us Leave Feedback Share Related Products Free Velcro Backed-up Holder – Super Flex Couplings Free Velcro Backed-up Holder – Rigid Couplings Free Velcro Backed-up Holder – Flexible Rubber Couplings Free Velcro Backed-up Holder – Steel Couplings Free Velcro Backed-up Holder – Aluminum Couplings Free Velcro Backed-up Holder – Foam Cushion Couplings