ELMER'S PRODUCTS-Colorloco Blendy Pens Kit: Small. Insert any two Blendy pens into the fusion chamber and twist. In real life; colors blend; so why shouldn't your pen? Just click; twist; and fuse to create crazy color blends! This package contains six Blendy Pens; three Blendy Pen fusion chambers; and four 10x8in art posters. Contents may vary. Pens are non-toxic and conform to ASTM D4236. Recommended for children ages 5 and up. Imported.