Ideal Security Model 8160 Heavy Duty Pneumatic Storm Door Closer with Torsion Bar and Wind Chain, 10.5" L x 1.5" W, Adjustable Speed, Secure Closing, Black bestsellers_healthUK_Sep2023 portable design makes it the quick drying portable design makes it the choice of HVAC field service teams This silicone tube is made of silicone rubber which is flexible Storm Door Chain: Ideal Securitys door chain will protect your storm door or screen door from damages caused by excessive wind Screen Door Closer Adjustment: Your door closers shutting speed can be adjusted to close the door faster or slower with the speed adjustment screw at the end of the tube and seasonal adjustment bracket