Supplemental Pack for Set 21303

What there is most of

• Bracket 1 x 2 - 1 x 2 · Light Bluish Gray×3
• Tile Special 1 x 2 Grille with Bottom Groove · Light Bluish Gray×2
• Technic Axle and Pin Connector Perpendicular Double · Black×1
• Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle · Dark Bluish Gray×1
• Technic Beam 1 x 2 with Ball Joint Straight, Smooth Ball · Dark Bluish Gray×1
• Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole · Dark Bluish Gray×1
• Technic Bush · Light Bluish Gray×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 7 part types and tick them off as you find them.