Product Name: Bicycle Helmet Standard with LED Rare Light&Detachable Sun Visor Ultralight Cycling Helmet Breathable Adult Mountain/Road/Biking Esg14047 Model NO.: ESG14047 Material: PVC Air Vents: >20 Age Group: Adults Gender: Unisex Certification: RoHS Hoop Size: 51?56CM Season: Summer Trademark: no trademark Transport Package: Carton Specification: with LED Rare Light&Detachable Sun Visor Origin: China HS Code: 6406100090 Product Description High Impact Resistance - Bike helmets meet Safety standard/CE Certified and use High-density, durable and tough PVC & PC, EPS foam, high protection and comfortable for mountains and roads.LED Light for safety - Adult helmets with 2 lighting modes LED safety taillight- slow flashing and fast flashing, help people behind you clearly recognized your direction.Removable Visor - Safety helmet with removable visor provides shade when biking, you can enjoy cycling even in hot days, and you can take it off if you don't want it.Ventilation for Comfortable - Bicycle helmets with 21 vents help to keep the cyclists cool and increase the speed. The liner/velcro can unpick to wash and it is safety, comfortable and breathable. Weight:250g/0.55lbs.Adjustable System - Cycling helmet goes with a standard size, equipped with the easy-use dial system(rolling regulator) and side straps make this adult helmet adjustable to different head size 52cm-61cm/20.47''-24.02''.Model No: ESG14047