Twinmarker Paint-It 040 brush and round writing instrument set, 72 pieces. Contents and packaging details: 29 assorted Paint-It 040 brush cartridges, 29 assorted Paint-It 040 round cartridges, 1 Paint-It 040 blender cartridge, 10 Twinmarker barrels, 1 Twinmarker brush/round in black. Type designation of the writing instruments: Paint-It 040 brush and round cartridge, Twinmarker barrel, Twinmarker brush/round. Barrel material: plastic. Description of special features: Environmentally and resource-friendly production. 95% recycling content in the cartridge and 92% in the barrel. Practical cartridge system for a sustainable painting experience. 11 barrels included for free, barrel color: deep blue.