Compatible with the following Grivel crampons:

GX LT
GX LT HYBRID
AIR TECH
AIR TECH HYBRID
AIR TECH ALU
G10 LT
G10 LT WIDE
G12 LT
G15 LT

Sizes:
16 cm = 27 g
19 cm = 33 g
22 cm = 36 g

Information on EU Regulation GPSR 

Name of the manufacturer: Grivel S.r.l.
Postal address of the manufacturer: Loc. Champagne 19, 11020 Verrayes (Aosta) Italy 
Electronic address of the manufacturer: https://grivel.com/de/pages/contact-us