Don't be fooled by the rugged appearance of Heavy Industry Grips. The proprietary EPDM rubber compound provides a soft, vibration-dampening feel for long-haul comfort, while the tough industrial styling hides your softer side. Housings are made from quality cast aluminum with form-fitted premium EPDM rubber compound for comfort, durability and longevity. Knurled areas between rubber pads provide both style and added grip.