An Infinity Edge end-grain maple board from JK Adams (SKU IE-1610-M). Official specs are 16" x 10" x 1 1/2". Maple finished in their mineral oil and beeswax, North American hardwood, USA made, lifetime guarantee. Official page lists end-grain construction and rounded edges so you can pick it up from both sides. End grain is listed as easier on a knife edge and less likely to show knife marks. Specs from JK Adams' Infinity Edge maple 16x10 page.

Handwash with warm soapy water and dry it. Do not soak, dishwasher, or microwave. Oil and/or beeswax when the wood feels dry.

End-grain maple with rounded edges so you can flip it and pick it up from either side.