ESTES 3158 Regular Engine Mount KitRegular engine mounts. Easy to assemble with complete instructions.This engine mount kit fits BT-50, 55, 56 & 60 body tubes. Plus can be used to make a conversion mount for lightweight D powered rockets.Includes: L/C CENTERING RING SET 2055 L/C CENTERING RING SET 2060 ENGINE BLOCK RING EB20A 1/4 IN LONG BL ADAPTER RING 2050 BRIGHT GREEN RETAINER RING 20 (MYLAR) BODY TUBE BT20 2.75 IN WHITE BODY TUBE BT20 WHITE 2.75 IN - EH SLOT BODY TUBE BT20 2.75 IN WHITE GREEN SPLIT ADAPTER RING ENGINE HOOK EH-2AEstes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly.Tools, construction and finishing supplies sold separately.In order to launch, a launch system, model rocket engines, starters and recovery wadding are required - sold separately-unless otherwise specified.
