Check the listing for details. Astro Pneumatic 322 ONYX 6 in. Finishing Palm Sander PU Hook Loop Backing Pad. Condition: New. Listed at 100.59 USD. Features: High powered 5mm (3/16") Stroke Finish Super lightweight (1.5lbs.) Sealed Bearings for Extended Life Compact for minimum operator fatigue Orbital action assures final swirl-free finish Built-in speed regulator Compact and lightweight motor for long term operation Composite lever housing and rotors Special design reduces sound level Low vibration Unit comes with Astro #4606 - 6 in. Hook & Loop Backing Pad Also sold separately Astro #4608 - 6 in. PSA Backing Pad Specifications: Pad Size: 6" Free Speed: 10,000rpm Overall Length: 6"(15.24cm) Net Weight: 1.5lbs. (.68kg) Spindle Thread Size: 5/16" x 24 Air Inlet Thread NPT: 1/4" Air Hose I.D. Size: 3/8" (10mm) Avg. Air Consumption: 5.5cfm Air Pressure: 90psi