This is a pack of ten 5x11x4mm metal shielded "Speed" clutch bearings. ProTek R/C "Speed" bearings are high quality steel/chrome bearings designed for the R/C racing enthusiast.These 5x11x4mm metal shielded bearings are the standard bearing for many monster truck clutches, such as the Traxxas T-Maxx and Traxxas Revo. Please check the manual that came with your vehicle for the correct size if you are not certain. Compatibility: Agama A215 Agama A215 SV Agama A215E Axial RR10 Bomber 1.0 Axial RR10 Bomber 2.0 Axial SCX10 I Axial SCX10 II Axial SCX10 III Axial Wraith 2.2 Axial Yeti 1/10 Axial Yeti SCORE GMade Komodo GMade R1 HB Racing D216 HB Racing D413 HB Racing D8 Original HB Racing D812 HB Racing D8T Original HoBao Hyper 10 SC Kyosho MP10 Kyosho MP9 Kyosho MP9 TKI2 Kyosho MP9 TKI3 Kyosho MP9 TKI4 Kyosho MP9e Kyosho MP9e Evo Kyosho MP9e TKI4 Losi 810 Losi 8IGHT 1.0 Losi 8IGHT 2.0 Losi 8IGHT 3.0 Losi 8IGHT 4.0 Losi 8IGHT Nitro RTR Losi 8IGHT-E 4.0 Losi 8IGHT-T 1.0 Losi 8IGHT-T 2.0 Losi 8IGHT-T 3.0 Losi 8IGHT-T 4.0 Losi 8IGHT-T E 3.0 Losi 8IGHT-T Nitro RTR Losi 8IGHT-T RTR Losi 8IGHT-X Losi 8IGHT-XE Race Losi TEN-SCTE Losi TEN-SCTE 2.0 Losi TEN-T S-Workz S35-2E SSD Trail King Tekno RC EB410 Original Tekno RC EB48.3 Tekno RC EB48SL Tekno RC ET410 Original Tekno RC ET48 Original Tekno RC ET48.3 Tekno RC MT410 Tekno RC NB48.3 Tekno RC NT48.3 Tekno RC SCT410.3 Traxxas Revo Nitro Traxxas XRT Vaterra Twin Hammers Vetta Karoo enRoute Berg Tracer V3