ZipperStop Wholesale Authorized Distributor YKK 100% Plastic Bimini Top Double Head Slider For Boats. YKK #10 Plastic Slider. The most popular slider for Boats Zipper, Campers Zipper and Tents zippers. Fits YKK #10 Vislon Zipper. 100% Plastic. Slider will not Rust! Color may vary on your monitor.