Made of durable, lightweight and practical transparent PP Plastics. Contain 1 Pack of 36 Compartments plastic organizer box, 120 plastic floss bobbins, 2 pieces of Color Cards and 2 pieces of big marker stickers ( each contain 64 pieces small sickers ) . Size of Floss Bobbin: 1.5" in length and 1.4" in width The box overall size is 10.8 x 6.9 x 1.8 inch , each grid size is 1.77 x 1.1 x 1.57 inch. Just get started organizing your embroidery floss collection and DIY needlecraft accessories such as beads, jewelry making supplies, embellishments and other craft supplies neat.