Ten different wooden cylinders with tactile surfaces and an accompanying solid wood shelf with the same reliefs.

The tactile contrasts (differences in tactile perception) are clear between some pieces, while in others they look similar. The color contrasts are also sometimes clear and sometimes not so strong.

Initially with open eyes, later possibly blindfolded, your child can place the cylinders one by one in the correct place on the shelf.

This version is challenging but not too difficult for visually impaired and blind people.

The surfaces from left to right: brown: woven, white: fine woven, orange: corrugated cardboard, black: soft mat, white: fine foam rubber, neon yellow: rough foam rubber, black: hard and fine sandpaper, beige: woven mat, gray: carpet loops, red: rough Velcro.

The pieces and the shelf are beautifully finished and varnished.