Stamps4Clay Pottery Stamps Square Stamps Large Square 6 cm (2.4 in) Medium Square 3 cm ( 1.2 in) Small Square 1.5 cm (0.6 in) Round Stamps New 4 cm Curve Top stamps are now available! Extra Large Round 6 cm (2.4 in) Curve Top 4 cm (1.5 in) Large Round 4 cm (1.5 in) Medium Round 2.5 cm (1 in) Small Round 1.5 cm (0.6 in) Mini Round 1 cm (0.4 in) Triangle Stamps Medium Triangle Small Triangle Rectangle & Snowflake Stamps Rectangular Snowflake Shape