SFR Essentials Skateboard Bmx Helmet Blue under-20 Can be used as just

Can be used as just gasket knee support or as knee pads stabilizer and extra protection

Large: Knee 22-30cm Elbow 20-27cm Also See size chart in Pictures

Single cold pressed deck using premium quality 7 ply 100% Canadian maple

9/16'' socket

SFR Essentials Skateboard Bmx Helmet Blue under-20 Can be used as justSFR Essentials Skateboard Bmx Helmet Blue Features: Certified to EN1078 safety, standard Shell, ABS Inner EPS Includes foam inserts for size and fit adjustment Available in a variety of great colours Designed for max airflow and protection XXS XS = 49 52cm S M = 53 56cm L XL = 57 59cm To ensure the correct sizing measure the circumference of the head.