Subscribe to our Newsletter. Kohler K-4652-55 – Toilet Seat Accessory. Lustra Q2 Elongated Closed-Front Toilet Seat with Quick-Release and Quick-Attach Hinges Product Specifications. Center to Center: 5.5 in. Length: 18.625 in. Length (Inside): 12.438 in. Width: 14.188 in. Width (Inside): 8.438 in. Mounting Hardware Included: Yes. Toilet Seat Lid Included: Yes. Approved for Commercial Use: Yes. Where possible, we note damage and list missing accessories. These factors are reflected in the pricing of the item. Simply send us a message, and a resolution will be quick to follow.