Product Description:

 ROKR 3D Wooden Puzzle-Model Building Kits

-DIY Movement Assembled Toys-Brain Teaser Educationa

l and Engineering for Boys Girls Aged 14+,When Christmas, Birthday

Characteristics:

Product Name:Perpetual Calendar 3D Wooden Puzzle

Brand: ROKR

‎Theme: Perpetual Calendar

Material: Wood

The Number of Pieces: 27 pcs

Age: 14+

Finished Size: 17.5 x 9 x 14 cm

Product Feature:  

【Wooden Puzzle】This is a perfectly designed DIY kit that requires your hands-on work to complete. This mechanical wooden puzzle toy uses precision laser cutting of high- quality plywood, which is safe and convenient.

【Puzzle Design】This Beautifully Designed Perpetual Calendar is allow the calculation of the day of the week for a given date in from year 2018 to 2040.Surprise your family, friends and colleagues with this mechanical Perpetual