BrickLink - Set 9106-1 : LEGO Duplo Toolo Medium Set [Educational & Dacta: Duplo:Toolo] - BrickLink Reference Catalog
LEGO DUPLO Toolo Lot 72 Parts & Pieces Wheels Screwdrivers Hooks Shovels & More | #468431460
LEGO: I am looking for instructions for joining wheels and duplo bricks with holes on the sides and on the top, specifically trying to assemble a fire engine body to a wheel
LEGO Duplo Toolo / Action Wheelers. This subset line deserves a special mention outside of it's Duplo label. These are great. The fasteners can not be remo… | Iande
BrickLink - Set 9200-1 : LEGO Duplo Toolo (Action Wheelers) Large Set [Educational & Dacta:Duplo:Action Wheelers] - BrickLink Reference Catalog
LEGO Set 2940-1 Fire Truck (1992 Duplo > Toolo) | Rebrickable - Build with LEGO
Duplo | Toolo | Brickset: LEGO set guide and database