Ultimate Accessory Set

Notable parts

• 2 parts appear in only a few other sets: Control Unit, RCX Remote (Black) — also in 9738 RCX Remote Control Unit (all Mindstorms); Sensor, Rotation (Blue) — also in 9701 Control Lab Building Set, 9756 Rotation Sensor, 9891 Angle Sensor.
• 4 moulds first came out in 2000, including in this set: Technic Axle and Pin Connector Perpendicular Double ×2; Technic Beam 1 x 15 Thick ×2; Technic Beam 1 x 5 Thick ×2; Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin ×2.
• 1 existing mould first came out in this colour in 2000, including in this set: Technic Beam 1 x 9 Bent (7 - 3) Thick (Black) ×2.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.