The innovative design of a Sure-Seal Lockable Hatch from T-H Marine provides a great way to keep your valuables and tackle safe. This attractive and economical hatch allows easy access to horizontal or vertical storage areas. This Sure-Seal Hatch has an overlapping lid and two separate seals on the frame and lid to provide a watertight fit. This hatch also looks great, with no visible fasteners. The corrosion-free integrated hinges allow a 180° opening.• Outside Dimensions: 10-3/4" x 15"• Inside Dimensions: 7-3/8" x 11-1/4"• Cut-Out Dimensions: 8-3/4" x 12-5/8" No visible fasteners 180° opening 7-3/8" x 11-1/4" inside dimensions | Sure-Seal 11" x 15" Access Hatch, Locking, Sandshell