Homax Products 3" Adhesive Spreader Knife with 1/8" Notch for Carpet & Vinyl Tile is a heavy-duty, solvent-proof, yellow plastic knife that resists softening and wear. The label indicates the notch size and application. It is durable and lightweight, making it easy to use. The 3/32 inch size is for vinyl flooring and floor tile, the 1/8 inch size is for carpet and vinyl tile, the 3/16 inch size is for wall tile and tile board, and the 1/4 inch size is for ceramic floor tile.