Each biner is sub-3gram and lockable. Approximately 3.5cm in length. The same design as the Niteize ‘S’ Biner Microlock, that can cost over double the price of these. 
 
Made in steel with the locking mechanism in plastic. Great for hanging quilts and protectors from your hammock, hanging items off your pack or just organising small items such as your key ring. Simple to use with the added twist-lock security to prevent accidental opening. 
 
They come in pairs. One black and one polished steel.
 
Length: 35mm
Width: 15mm
Depth: 6mm
Weight: Approx 2.75grams each.