outer square and inner circle color paperboard square children's art manual thickened cardboard drawing paper sketch 8k display border

8k border cardboard a4 border cardboard 33 * 33cm outer square frame card 33 * 33cm outer square and inner circle border card 28 * 28cm outer square border card 28 * 28cm outer square and inner circle border card

color mixing (10 sheets/pack) red (10 sheets/pack) zhu di (10/pack) rattan yellow (10 sheets/pack) lemon yellow (10 sheets/pack) ultramarine (10 sheets/pack) head green (10 sheets/pack) grass green (10 sheets/pack) lake blue (10 sheets/pack) gray (10 sheets/pack) black (10 sheets/pack)