Clothes Hanger Peg for washing line

Clothes hanger pegs for washing lines that should not slip on the line or blow off in the wind.

I made them for use with either an 8mm diameter plastic coat hanger and a 4mm metal coat hanger and a 8mm square hole - skirt/trouser clothes hangers.

Made using ABS 1.75mm
Infill Density Low 10% (needs to be flexible)
Layer Height 0.2
Supports, Raft - not required.

I'm sure the design could be improved.