1 big cap and 1 small cap, 2 different sizes. Please confirm before purchasing.Replacement for Stihl following models: 024 Chainsaw 034 Chainsaw HT 100 Pole Pruner HT 101 Pole Pruner HT 130 Pole Pruner HT 130 Z Pole Pruner HT 131 Pole Pruner HT 131 Z Pole Pruner MS 171 Chainsaw MS 181 Chainsaw MS 192 Chainsaw MS 193 Chainsaw MS 200 Chainsaw MS 210 Chainsaw MS 211 Chainsaw MS 230 Chainsaw MS 231 Chainsaw MS 240 Chainsaw MS 241 Chainsaw MS 241C MS 250 Chainsaw MS 251 Chainsaw MS 260 Chainsaw MS 340 Chainsaw MS 360 Chainsaw MS 361 Chainsaw MS 380 Chainsaw MS 381 Chainsaw MS171 (2 Mix, Z) MS181 (2 Mix, C, C-BE, CBE 2 Mix, C-BE Z) Chainsaw MS192 (C, C-E, C-E Z, T, TC, TC-E, TC-E Z, T-Z) Chainsaw MS200 (Z, T-Z) Chainsaw MS210 (C, C-B, C-BE Z, Z, Z WoodBoss) Chainsaw MS211 (2-Mix, C, C-BE, C-BE Z, Z) Chainsaw MS230 (C, C-B, C-B Z, C-BE, C-BE Z, Z) Chainsaw MS231 (2-Mix, C, C-BE, CBE 2-Mix, Z) Chainsaw MS241 (C-BEM, C-M, CM 2-Mix, C-MQ, C-MVW, C-MVWZ, C-MZ) Chainsaw MS250 (C, C-B, C-B Z, CBE, C-BE Z, Z) Chainsaw MS251 (2-Mix, C, CBE, CBE 2-Mix, C-BEQ, C-BEQ Z, Z) Chainsaw MS260 (ARTIC, C, C-B W, C-B Z, D, DW, FarmBoss, N, PRO, VW, VWZ Arctic, WVH, Z, Z Pro) Chainsaw MS360 (ARCTIC, BR, PRO) Chainsaw MS361 Z Chainsaw MS381 Z Chainsaw Package includes: 1x oil cap ,1x fuel cap