Herschel Kids Whaler Mesh Hat-Washed Chalk Size_1.7" Set of 4 these are the same as

these are the same as propeller bolts used on the 2 blade hub

Composition 58% Cotton

The base is wider than the depth which isn't seen in your typical fins

Fabric: Cotton fleece with brushed inner face fabric [300 g/m2]

Upper Details: Puff effect molded EVA upper

Herschel Kids Whaler Mesh Hat-Washed Chalk Size_1.7" Set of 4 these are the same asFrom Herschel Essential for little explorers. The Whaler Mesh Kids cap features mesh ventilation panels to keep them cool in warmer weather. Sized for 3 7 years old 100% polyester crown Structured medium crown Flat brim Plastic snapback Signature striped front panel liner Mesh ventilation panels Dimensions: 4. 00"(H) x 9. 00"(W) x 7. 75"(D)