Upper Primary Mathematics Kit

Upper Primary Mathematics Kit science lab kits for middle school, physics experiment kits China, science kits for high school, science kits for schools China, secondary mathematics lab kit

Plastic Strip (Type I)
4 slots 125 x 5 mm with both ends rounded to semi-circle.
Transparent Perspex 262 x 20 x 2.7 mm to 3 mm, having 3 holes of dia 5 mm at a distance of 50 mm, 120 mm and 190 mm from one end.  
Location of slots: 1st slot : 0-25 mm,  
2nd slot : 70-95 mm,  
3rd slot: 140-165 mm,  
4th slot: 210-235 mm.