22 Pc. Box SET of Stainless Steel Tattoo Grip Tips - Tattoo Supply by unitedtattoosupply. $12.00. The stainless steel tattoo tips are made of 304 stainless steel and arranged in a box with the sizes marked on each slot. **[The stainless steel tattoo tip set includes: *Closed Round Tips: 1R, 3R, 5R, 7R, 9R, 11R, 13R, 15R, 18R *Closed Flat Tips: 5F, 7F, 9F, 11F, 13F, 15F, 17F *Closed Diamond Tips: 3D, 5D, 8D, 11D, 14D, 18D. ]