8 Slot Picatinny Riser Mounts - Available in 0.5" Low Profile and 1" High Profile, Perfectly Meeting Your Different Needs! Riser Base Mounting On Picatinny Rail Riser mounting base can be mounted directly to Picatinny or Weaver rail. With 8 Slots 3.34" Long Picatinny Rail Top 8-slot picatinny rails allowing you add on any standard picatinny or weaver accessories, such as flashlight. See Through Design, Sturdy & Durable With see-through design, Made from aluminum alloy & high-strength steel, with matte black hard coat anodized, lightweight solid, safe durable. Easy To Install Or Remove Simple Side two locking thumb screw design, easy and quick to remove or install, tighten the thumb screws by hand and allen wrench to achieve stable and safe fixed. [ Note: Low profile riser mount comes with an allen wrench tool, Please ensure that the installation is firm before using]. Specification ◈ Material: Aluminum Alloy+Steel ◈ Rail Length: 8 Slots / 85cm Length ◈ Riser Style 1: High Profile - 1'' Height - Weight: 4.12 oz ◈ Riser Style 2: Low Profile - 0.5'' Height - Weight: 2.8 oz Package List 1 x 8 Slots Picatinny Riser Rail (according to your choice) 1 x Allen Wrenchs