ของเล่นเด็กชุดโมเดลเกียร์วิทยาศาสตร์หินอ่อน 3D DIY เสริมการเรียนรู้วิทยาศาสตร์

1.Type:DIY Marble Run 2.Material:Wood 3.Power:2*AA battery(only battery case,battery not included) 4.Size:25*25*4.5cm 5.Perfect gift for adults and children (10 and up!)，Birthdays, Father’s Day or just because. 6.Healthy and Eco-friendly materials,edutainment. 7.DIY science kits toy make children's own toy. 8.It Can excite children's curiosity and promote imagination, developing intelligence, exercising the ability of using hands and brain. 9.Parents and children to assemble it together to improve parent-child relationship. 10.It's useful for keeping track of unproductive habits, like play phone and online game for a long time. Package includes: 1 * DIY Marble Run kit 1 * Instruction