Image Item No. Description  9956-1 (Inv)  Special Elements for Non-Motorized Simple Machines (Special Elements For 979630) 60 Parts Catalog: Sets: Educational & Dacta: Service Packs: Special Element Sets  991927-1 (Inv)  Mechanism Miscellaneous Gear Assortment 25 Parts Catalog: Sets: Educational & Dacta: Service Packs: Technic  5003123-1 (Inv)  Connector Pegs with Cross Axle 100 Parts Catalog: Sets: Educational & Dacta: Service Packs: Technic  5003125-1 (Inv)  1-1/2M Connector Pegs 100 Parts Catalog: Sets: Educational & Dacta: Service Packs: Technic  5003189-1 (Inv)  3M Connector Pegs 100 Parts Catalog: Sets: Educational & Dacta: Service Packs: Technic  5003190-1 (Inv)  Simple and Motorized Mechanisms Misc Gear Assortment Pack 25 Parts Catalog: Sets: Educational & Dacta: Service Packs: Technic