Picnic blanket has sliding clasp fastener strips along each edge, one of which is fitted with sliding clasp and lock, allowing blanket to be folded in half and fastened together to reduce its size

摘要

The picnic blanket has sliding clasp fastener strips (1a, 1b) along each edge. One of these is fitted with the sliding clasp (2a) and a lock (3a), allowing the blanket to be folded in half and fastened together to reduce its size. Alternatively other, similar blankets can be fastened to it.