Pack of 10 clips in assorted sizes
 
Uses :
Substitute pins that may bend or are ineffective for thick layers
Flat on the back and made from a clear, non-scratching plastic that allows them to slide over your sewing bed easily and without damage
Strong spring that's easy to open but holds firm when released
Top has a slight curve to accommodate the bulk of folded fabric
Measurement lines on the back to measure the depth of  fold or fabric edges while clamping
Perfect tool for kids learning to sew - eliminates the dangers of pins