Princeton Tec Aqua Strobe LED throwbags The 4" floor insert is

The 4" floor insert is enclosed in a zippered floor pocket constructed of 4000 denier PVC on the bottom and 1000 denier PVC on top

it gives you a 4:1 mechanical advantage

It is designed for extreme or continuous service in permanently rigged challenge courses

Replacement ropes available

or in a kit of two

Princeton Tec Aqua Strobe LED throwbags The 4" floor insert isUsing the highest quality LED available, the Princeton Tec Aqua Strobe LED is sure to grab attention whether it's on your PFD or your boat. Princeton Tec's Maxbright LED is extremely bright and efficient, emitting a smooth, powerful, white light useful for a wide range of tasks. Buoyant cone keeps the light pointed up whether underwater or at the surface for 360 degree visibility. Simple, reliable twist operation activates this AA battery powered