Shop › Horseshoe Plastic Shims (Box of 1,000) Image 1 of 1 Horseshoe Plastic Shims (Box of 1,000) from $40.00 1/16", 1/8", or 1/4" horseshoe plastic shims. Size: Select Size 1/16" 1/8" 1/4" Add To Cart Added! 1/16", 1/8", or 1/4" horseshoe plastic shims. You Might Also Like Fiberglass Rod Reel (328 ft.) from $98.00 Gluesticks (Bag of 12) $8.75 Aluminum Backing Pad from $23.00 Wood Templates (1/8" x 2" x 8') - Bundle of 20 $37.00 Sandpaper Backing Pad - (High-Speed 12,000 RPM For Sandpaper Discs) from $16.00