The Erector Set 100th Anniversary Motorized Construction Set is a building toy designed for children ages 5 and up. Released in 2010, this set includes about 200 parts and is battery-powered, allowing kids to create various construction projects with ease.

Instructions for 20 models

This set is missing 4 replicate parts

Shown in photos #3:

1 yellow triangle

1 large black screw

2 nuts for the small screws

Because they are replicates, the missing pieces do not prevent any individual model from being built

Motor was tested and works

Requires 4 AA batteries (not included)