Kit Includes:• 1 AF4401 1/3 Block This block is designed to follow slightly curved or flat panels without digging into fill material.Size: 1-1/2"H x 2-5/8"W x 5-1/2"L• 1 AF4402 2/3 BlockThis block is designed to allow the user to accurately block flat panels and panels with slight curves.Size: 1-3/8"H x 2-5/8"W x 11"L• 1 AF4403 Full Size BlockA favorite among the professionals when blocking large surfaces.Size: 1-3/8"H x 2-5/8"W x 16"L• 1 AF4409 Long BlockThis block is designed to allow the user to accurately block flat panels and panels with slight curves.Size: 1-3/8"H x 2-5/8"W x 24"L• 1 AF4410 Marine BlockA favorite among the professionals when blocking large surfaces. Uses 2-3/4" wide PSA sticky paper.Size: 1-3/8"H x 2-5/8"W x 30"L • Plus FREE Airbrush Action DVD: A comprehensive guide to surface preparation and block sanding from the staff of Steve's Auto Restoration, one the world's leading hot rod builders. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.