Ladders easily attach by dropping ladder hoops into cups. For ASC4 and ASC5 model removable pontoon ladders. Constructed from Non-corroding, UV resistant plastic. Made for the JIF Marine ASC style removable pontoon ladder. Included with ASC and DMT Model Ladders. JIF Marine EFD Mounting Cup Set for ASC. Durable plastic cup mounts that permit quick mounting and removal. Height: 5.1" Depth: 3" Ladders easily attach with non-corroding