All hardware is internal. Four stainless steel washers are welded to a 301 full hard stainless steel insert that is molded into the seat. The insert is covered with EPDM material that helps withstand harsh weather and fading. EPDM: Ethylene-propylene-diene-monomer is a synthetic rubber material which helps prevent crazing, cracking and oxidizing. Natural rubber is often made from recycled tires etc, and you are never sure what the actual rubber. Measures 6" x 24" x 3/8" thick. 3.25 lbs.
100% Satisfaction Guarantee: At Mansion Athletics, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Athletics in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.