Anti-Static Foam Thickness : 0.50mm Quantity : 120pcs MKID switch pads foam will magically alter the sound profile of your keyboard. Featuring a light adhesive backing (non-sticky) and hole cut-outs to work seamlessly with 3 or 5-pin switches, installation on your PCB is simple and straight-forward. All foam materials are permanent anti-static; suitable for applications where long-term ESD properties are required. This switch pad compatible for hotswap PCB models and available with some choices of material depends on your preferences : - EVA - gt; plush texture - IXPE (irradiation cross-linked polyethylene) - gt; firm and rigid texture - LE-20 PORON - gt; soft and smooth texture Installation Steps : - Apply MKID switch pad foam onto PCB (preferably to be attached with MKID curved tweezers) - Install the switch