Don't ruin a vacation because you don't have extra fin straps in your save-a-dive-kit. This Aqua Lung Fin Strap Assembly Kit is a must for the traveling diver. Kit includes fin strap and squeeze-style" side-release buckle assemblies, (Male and Female Buckles). Strap is made from durable rubber, has a large heel pool tab for easy donning and doffing of fins. Buckles are made from a corrosion and impact resistant plastic.