Product Description Ideal white painting ground base. Exceptional quality, professional grade Acrylic Mediums designed to meet the demands of today’s acrylic artist. Unique poly bags use less packaging than standard rigid plastic containers, resulting in less post-consumer waste. Poly bags are tough, durable and designed to stand up for easy storage. Holbein’s 6 Pastes and 7 Gels along with 3 Base Gesso painting grounds are sure to support all of your artisic creativity.