Marinebaby 3-4 Step Ladder Under Platform Slide Mount Boat Boarding Ladder, Telescoping Ladder with a Carry Handle and Mounting Screws, Press-Type Spring Latch (4 Steps)

【OEM Quality】: Constructed of marine grade 316 stainless steel and have a proofload to support even the biggest swimmer. Each step has a slip-proof plastic tread to assure maximum safety. 【Compact & Convenient】: The telescoping steps on this boat ladder fold quickly and effortlessly into the water for safe boarding. For storage, the low profile stainless steel steps fold compactly and also gives this boarding ladder a very sleek look. 【Application】: This telescopic boat ladder is made to be bolted to a horizontal platform such a the boat floor or side railings depending on the installation. The design of this platform ladder makes it possible to be used as on a pontoon boat. 【Dimensions】: Thickness of Tube: 1.2"; Length Folded 18.7" (475mm), Length Extended 45.5"(1155mm), Width 10"(255mm), Step Thread: 7.25" X 1.5"; Proof Load 600 lbs. 【Package Included】: 1 x 4 Press-Type Spring Lock Steps Ladder; 8x Mounting Screws are included(The diameter of the hole for screw is about 8mm/0.31inch)