View cart “Sign Rider L Clamp” has been added to your cart. Sign Rider H Clamp Item: FS055 $2.00 Qty Quantity Discounts: 100+: $1.60 / each Add to cart SKU: FS055 Categories: Feature Sheet Holders, Outdoor Boxes/Stakes, New Products Description Description H clamp design easily attaches riders to most any sign. Accommodates sign riders up to 4mm (5/32″) thick. Perfect for hanging multiple sign riders together.