It's important to know where your equipment is stored on board, especially in times of emergency. So be on guard with Davis Instruments' Quick  Fist clamps. These one-piece, heavy-duty rubber clamps hold fire extinguishers, oxygen cylinders, boat hooks, hoses and more in marine temperatures without corroding. Merely mount the clamp and strap the equipment in. The standard model holds gear that weighs up to 22 pounds and 7/8 to 2 1/4 inches, while the Super Quick Fist grips up to 50 pounds and 2 1/2 to 7 1/2 inches. The standard Quick Fist is sold in pairs for $9.99, and the Super Quick Fist is sold separately for $9.99. (510) 732-9229.