High-density rubber strap
Quick-release spring bars 
Recommended for active/outdoor lifestyle
Strap thickness: 3.5mm
Stainless steel buckle

19mm: Buckle Width 18mm. length: 80mm and 125mm
20mm: Buckle Width 18mm. length: 80mm and 130mm
21mm: Buckle Width 20mm. length: 80mm and 125mm
22mm: Buckle Width 20mm. length: 85mm and 135mm

Product showcase video for the Flex Rubber Watch Strap can be found 

*Free  with purchase of any 3 or more watch straps from our website. 
(Free tool will not be reflected during checkout but will be added into your package during fulfillment)