22Pcs/set Spirograph Ruler Set Geometric Ruler Mathematical Roulette Drawing Tools Learning Painting Puzzle Toys Spirograph Art Tool

​Feature: Versatile Magic Ruler Set Use your imagination to draw interesting patterns Clear scale, smooth gear edges Exquisite workmanship, smooth edges and corners without hurting hands Wanhuachi is a new type of intellectual toy that exercises children's hands-on, pen and brain skills, cultivates aesthetic taste, and develops intelligence. Can freely cooperate to draw different line trajectories, easily and quickly draw thousands of fantastic patterns. Use tips: Single hole drawing method: using a hole with different drawing methods to achieve different effects Draw to the end: Repeat until the end (always click on the link) Tooth shifting method: After drawing a certain number of turns, shift one tooth and continue painting Porous combination drawing method Combination method of holes on the same gear Different combinations of gear holes and holes; The external gear can be replaced, Draw on the original image one after another to create more dazzling patterns. Note: When changing gears, do not move the internal gear Specification: Material:Plastic Quantity: 22Pcs/set Shipping dimensions: 15cmx10cmx2cm Package including: 22pcs Spirograph Ruler Set No Retail Box,Packing Safely in Bubble Bag.