Pocket/flipper door hinges for thick inset doors (1-1/4" maximum thickness) on frameless or face-frame cabinets. Can be used with slides in the EZ Pocket Door System for doors that weigh up to 30 lbs. and are a maximum of 42" tall x 24" wide or with slides in the KV8091 Pocket Door System for doors up to 75 lbs. and 72" tall x 26" wide. Require 40mm hinge cup holes. Note: The EZ Pocket Door System requires one set of hinges per door. The KV8091 Pocket Door System requires two sets of hinges per door.