Stainless steel sliding buckles for webbing strap , perfect for fastening boat covers and canopies. We have two types, all stainless steel and half nylon half stainless steel. 
The stainless steel is marine grade 316 A4. 

What you get with this listing
25mm All stainless steel webbing buckle / Full stainless or Nylon Waist

Marine grade stainless steel 
IW - Inside width is 26mm
IH - Inside height is 26mm
Buckle can slide up and down.