Alvin and Co. PU25 Stylish and contemporary, these armrests feature cushioned black polyurethane loops with sliding width adjustment for comfort. Fits Alvin chair models CH222, CH277, CH290, CH444, CH555, DC208, DC249, DC310, DC710, and DC778. Features: -Product Type: Arms.-Finish: Black.-Distressed: No.-Powder Coated Finish: Yes.-Gloss Finish: Yes.-Material: Plastic -Material Details: Polyurethane..-Hardware Material: Stainless steel.-Solid Wood Construction: No.-Number of Items Included: 15.-Pieces Included: 2 P.U. armrests, 2 arm plates, 1 supporting bar, 2 lock washers, 2 flat washers, 2 adjustment knobs, 4 M6x26mm machine screws.-Water Resistant: No -Water Resistant Details: ..-Scratch Resistant: No.-Non-Skid: No.-Upholstered: No -Upholstery Material: .-Upholstery Color: .-Tufted: .-Cushion or Upholstery Fill Material: .-Foam Density in Pounds per Cubic Foot: ..-Lumbar Support: No -Passive or Active: ..-Arms Included: Yes -Arm Type: Open loop..-Padded: Yes.-Heated Feature: No.-Portable: No.-Locking Capability: Yes.-Adjustable: Yes -Adjustable Strap: No..-Compatibility: Fits Alvin chair models CH222, Ch277. CH290, CH444, CH555, DC208, DC249, DC310, DC710, and DC778..-Swatch Available: No.-Recycled Content: No -Total Recycled Content (Percentage): .-Post-Consumer Content (Percentage): .-Remanufactured/Refurbished: ..Dimensions: -Overall Height - Top to Bottom: 11.5.-Overall Width - Side to Side: 24.5.-Overall Depth - Front to Back: 12.25.-Arms: Yes -Arm Height - Top to Bottom: .-Arm Width - Side to Side: .-Arm Depth - Front to Back: ..-Overall Product Weight: 8.12.Assembly: -Assembly Required: Yes.-Tools Needed: Screwdriver.-Additional Parts Required: No -Parts Needed: ..