250 mm x 400 mm plus 80 mm on each side (flap)
80 grams of plastic bags used double and aluminum crochet needle No. 3 1/2.
Chain Stitch, Simple Crochet, Double Crochet
Recycle plastic bags as shown in the following link. work a chain of 240 mm and work with fantasy stitch (see graph) at 560 mm long, cut the thread and finish
work all around 1 r. with s.c.
Fold 80 mm from each end for the flaps and merge them with s.c.
ch.: chain stitch
s.t.: slip stitch
s.c.: simple crochet
d.c: double crochet