Description: Mini Add-A-Circuit Fuse Holder, Plug into an existing fuse holder. Provides one fuse holder to protect existing circuit, and a second fuse holder to protect new circuit. Provides 15AMP mini APM Fuse. Turns one Fuse slot into two-Plugs into any fuse slot , even if the slot has a fuse installed , this could provides protection for both circuits ,the existing circuits are not affected. 10 Pieces 15Amp Mini APM Fuses & 10 Pieces Add-a-circuit Fuse TAP Block Holders. Specification: Material: Plastic and Metal Fuse Size: Approx 17 * 11mm Add-a-circuit Fuse TAP Size: Approx 172 * 20mm Package Includes: 10 Pieces Mini APM Fuses 10 Pieces Add-a-circuit Fuse TAP Block Holders Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you