This is a pack of ten replacement Tekno RC M3 Flanged Lock Nuts, and are intended for use with the Tekno R/C EB48 electric 1/8 buggy. These nuts are used to secure the front and rear shocks to the shock standoffs. This item fits the following: Tekno RC EB410 Tekno RC EB48 Tekno RC EB48.2 Tekno RC EB48.3 Tekno RC EB48.4 Tekno RC EB48SL Tekno RC ET410 Tekno RC ET48 Tekno RC ET48.3 Tekno RC MT410 Tekno RC NB48 Tekno RC NB48.3 Tekno RC NB48.4 Tekno RC NT48 Tekno RC NT48.3 Tekno RC SCT410 Tekno RC SCT410.3