... BOX 3. Used for student study , popular for Africa market type: ARSENALMath set: 14 PCS IN METAL TIN BOX : 1pc zinc ... , 1 pencil sharpener, 1pc 15cm ruler, , 1pc 45-45-90 triangle ruler, 1pc 30-60-90 triangle ruler, 1pc of 180 protactor, 1sheet ... /inner box, 144 sets/ctn Africa popular mathematical set with ruler set