LINKTOR Chemistry Molecular Model Kit (239 Pieces), Student or Teacher Set for Organic and Inorganic Chemistry Learning, Motivate Enthusiasm for Learning and Raising Space Imagination 240pcs Kit auspowers_batchthree Number of items: 1

Number of items: 1

3/4" #6 Fine-Thread

maybe there's dust in it

Specification: Material: polyester and spandex Shoulder straps: 14-21 in adjustable Waist belt: 27-41 in adjustable Width: about 2 in Color: black Package includes: 2 x Reflective vest Note: Manual measurement

LINKTOR Chemistry Molecular Model Kit (239 Pieces), Student or Teacher Set for Organic and Inorganic Chemistry Learning, Motivate Enthusiasm for Learning and Raising Space Imagination 240pcs Kit auspowers_batchthree Number of items: 1LINKTOR Chemistry Molecular Model Kit (239 Pieces), Student or Teacher Set for Organic and Inorganic Chemistry Learning, Motivate Enthusiasm for Learning and Raising Space Imagination Product Features FOR BASIC TEACHING TO CHEMIST: 240 pieces molecular model kit, including 86 atoms, 153 bonds and a disconnector tool. It is a good assistant for high school students to study inorganic chemistry, organic chemistry, and structural chemistry. TWO CHEMICAL