The Proxxon Replacement Sandpaper for PS 13 (No. 28826) is a 400-grit replacement abrasive set for the Proxxon Pensander PS 13 (No. 28594). Each pack contains 3 sheets, each pre-cut into 20 adhesive pads in four different shapes (5 of each) — 60 pads total — covering the PS 13's range of sanding profiles for surfaces, slots, and tight corners. The 400 grit is the finest in the PS 13 pad range — use it as the final sanding step before polishing or applying a finish, after working through 120 and 240 grit. At this grit, the PS 13's linear action leaves a near-scratch-free surface ready for polish or clear coat. Specifications Part Number: No. 28826 Compatible machine: Pensander PS 13 (No. 28594) Grit: 400 (ultra-fine) Contents: 3 sheets × 20 pads = 60 pads total Pad shapes: 4 shapes, 5 of each per sheet Backing: Adhesive PS 13 Sandpaper Grit Guide Work through the grits progressively for the best surface finish: 120 Grit (No. 28822) — intermediate; blending and surface smoothing 240 Grit (No. 28824) — fine finishing and pre-polish prep 400 Grit / No. 28826 (this pack) — ultra-fine; final finishing and polishing prep Works Well With Proxxon Pensander PS 13 (No. 28594) — the host machine for this sandpaper Replacement Sandpaper — 240 Grit (No. 28824) — the step before this pack Replacement Sandpaper — 120 Grit (No. 28822) — coarser starting point Proxxon Angle Polisher WP/E (No. 38660) — for polishing after final 400 grit sanding Proxxon Delta Sander OZI/E (No. 38520) — for corners and angled surfaces the PS 13 can’t reach Returns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. See our full return and refund policy. California Residents Prop 65 Information WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.