PHILODOGS Anti-Dust Coloured Chalk (Pack of 20), Kids, Toddler and Children Chalks for Writing & Drawing Blackboard, Sidewalk Chalk : Amazon.co.uk: Toys & Games
SIGNMARK Green Wooden Chalk Board, Board Size (Inches): 24" x 36"
JOYIN 60 Pcs Giant Chalks Set with Rounded Case for Children, Jumbo Washable Outdoor Bulk Pavement Chalk Non-Toxic Sidewalk Chalks Set for Blackboard Chalk Board : Amazon.co.uk: Toys & Games