This set makes a safe and fun introduction to the use of tools for children 3 years and older, with colorful and easy-to-use pieces. The set includes five kid-safe tools: a hammer, saw, screwdriver, wrench and clamp. Use the saw to "cut" pieces off the velcro blocks, or try the screwdriver with the large threaded bolts. For a real challenge, assemble the various sizes of wooden pieces using nuts and bolts to create dozens of different models and toys. All of the pieces can be neatly stored in the workbench, which measures 25 cm x 20 cm (about 10" x 8").