Each Finger Space Tuning Kit includes: 4 custom-made silicone o-ring bushings 4 silver washers 1 free Finger Space mini sticker
Each o-ring is made from silicone, the same material used in most professional shaped tuning. Our silicone o-rings are high quality o-rings that last a long time, have a soft yet strong durometer, and come in our own custom colors (some of which you can’t find anywhere else!).
Each o-ring has an outer diameter of 4mm, an inner diameter of 1.5mm, and a thickness of 1.5mm. The perfect size for your fingerboard trucks. Our silicone o-rings are very strong and durable, especially when paired with our stainless steel washers.