It is 3/8 picco chain. Chainsaw chain feature You are buying a very sharp chain that cuts wood quickly.
STIHL CHAINSAW CHAIN 61 Picco Micro Mini 3 3/8" 50 DL 1,1mm Bar 14" 36100000050
Stihl Chainsaw Chain 3639 000 0067 fits 40cm (16") MS260, MS261, 026 Chainsaw
Stihl Chainsaw Chain 3636 000 0055 fits 40cm (16") MS180, MS181, 018 Chainsaw
Stihl Chainsaw Chain 3610 000 0044 fits 30cm (12") MS170, MS171, 017 Chainsaw
Stihl Chainsaw Chain 36100000044 fits 30cm (12") MS162 Chainsaw
Stihl Chainsaw Chain 3670 000 0064 fits 30cm (12") MSA120, MSA 120
