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Amazon [amazon.com] has Melissa & Doug Deluxe Wooden Magnetic Responsibility Chart w/ 90 Magnets for $10.31.
Shipping is free with Prime or on $35+ orders.

Target [target.com] also has Melissa & Doug Deluxe Wooden Magnetic Responsibility Chart w/ 90 Magnets (3789) on sale for $10.31. Shipping is free w/ Target Circle Card, Target Circle 360 Membership, or on $35+ orders.