This set comprises the following: 1 & 2. Fraction circles with stand 3. Five frames placed on a stand. Each frame contains a square inset cut into 1, 2, 4, 8 & 16 pieces. 4. Four frames placed on a stand. Each frame contains a square inset , cut into 2, 4, 8 and 16 pieces on the diagonal. 5. Four frames placed on a stand. Each frame contains a triangle inset , cut into 1, 2, 3 and 4 pieces. All insets are provided with knobs