Compatable with current model Simple Human Dish rack (bought in the past 2 years or newer) Fits both Regular and Compact size racks Designed and Printed Custom for simplehuman (tm) Dish rack modern version Hollow design for more air flow to dry knives faster Color match not exact DOES NOT FIT OLDER SLIM-LINE WIRE RACK MODELS or 1st Gen Simple Human Dish Rack (non shark-fin shape) (3+ years or older) A 3D designed and printed knife block for use with the simplehuman kitchen dish dryer rack. A Perfect fit to dry your knives with 7 slots of diffferent sizes. (DOES NOT FIT OLDER SLIM-LINE WIRE RACK MODELS)