Check the listing for details. Vico Marine 59" Support Pole + Boat Vent 2 (Extends 34" to 59" Max). Color: Silver, Condition: New. Listed at 27.90 USD. Support and vent your boat cover with the Vico Marine Support System. Our telescoping cam lock support poles have been tested to hold up to 120 lbs. That's over twice the weight of standard thumbscrew mooring poles. They have a polycarbonate collar and stainless steel components. The aluminum tubing is anodized, heat-treated and lightweight. We use fully synthetic TPR rubber Grey bottom crutch tips that will not scuff or mar your boats flooring. This specific pole is 34" when collapsed and extends to 59" maximum. BoatVent II helps prevents mold, mildew, and bacteria from growing under your cover which causes irreversible damage to your boat's interior. Vico Marine manufactures this product in the United States.Support and vent your boat cover with the Vico Marine Support System. Our telescoping cam lock support poles have been tested to hold up to 120 lbs. That's over twice the weight of standard thumbscrew mooring poles. They have a polycarbonate collar and stainless steel components. The aluminum tubing is anodized, heat-treated and lightweight. We use fully synthetic TPR rubber Grey bottom crutch tips that will not scuff or mar your boats flooring. This specific pole is 34" when collapsed and extends to 59" maximum. BoatVent II helps prevents mold, mildew, and bacteria from growing under your cover which causes irreversible damage to your boat's interior. Vico Marine manufactures this product in the United States.