It is a photo frame made of craft wood that requires no mitered sawing.
Parental supervision is recommended.
Power drill Hat elastic - black or white. 2 lengths thin baton - about 0.5 to 1cm diameter and 11cm in length. How To Make It Cut an upside down v shape in top of craftwood and a right way up v shape in opposite end. Measure 2cm in from every edge and mark with a pencil. Drill 4 holes where these dots meet.