These knee pads are made from high-quality materials and offer optimal comfort. They can be easily secured as they have two straps with Velcro closure. Protection class: I, fastening: adjustable Velcro closure. Manufacturer: Yato. Type of closure: Velcro. Age range description: Adult. Quantity of items: 1. Package dimensions: 35 x 21 x 6.5 cm; 174 grams. ASIN: B009SFS2N0. Material: eva. Special features: Non-slip, Lightweight, Durable. Advertising, Durable, Lightweight. International article code: 05906083746024. Special features: Non-slip, Lightweight, Durable. Advertising, Durable, Lightweight. Sport: Walking. Form factor: Shell. Quantity of items in the package: 1. Date of online listing: April 11, 2016. Reference: 74602. Type of sport: Walking. Material: eva. Manufacturer: Yato. Special functions: Non-slip, Lightweight, Durable. Advertising, Durable, Lightweight. Brand: VOREL. Battery(ies) required: No. Size: One Size. Availability of spare parts: Information unavailable on spare parts. Production discontinued by manufacturer: No. Batteries included? : No. Quantity of article packages: 1. Age range (description): Adult. Article model number: 74602 - model: 74602.