JEYKAY 1303 Mechanical Engineering Toys 3-in-

NO. 1302 could build :Windmill small windmill Catapult Learning:Chain gearing;the role of the axis;the role of the idle gear NO.1303 could build:Shooting gameEyes of clown embossingmachine Learning:speed variable principle;chain gearing;the role of the axis Manufactured by JEYKAY. NO.1304 could build:Liftcraneswivel chair Learning:application of the ratchet;speed variable principle;the pulley Model Type: 4 models available come with instruction NO.1301 could build :Merry go round chair seesawbarrier gate learning :Speed variable principle;centrifugal force;application of the crown gear