AMS Berm grips available in black, green and gum.
Benefits:
Tapered diameter, thin inside, thicker outside.
Micro-diamond pattern with waffle style at the centre.
Locking is provided with a single inside collar.
The pair are just above 100 grams.
No flange.
Specifications: 
135mm total length.
29.5mm inside. 33.9mm outside diameter.
102 grams (3.6 ounces).