Sport and games — what they are made of
6 sport and games objects, broken down.
| Object | Made of |
|---|---|
| Tennis ball | A pressurised hollow shell of vulcanised rubber, covered in a glued-on wool and nylon felt. |
| Golf ball | A moulded polybutadiene rubber core inside an ionomer or urethane cover, dimpled all over. |
| Soccer ball | Polyurethane outer panels over a laminated fabric backing, wrapped around a latex or butyl bladder. |
| Basketball | A pebbled composite or leather cover over nylon winding and a butyl rubber bladder. |
| Cricket ball | A cork core tightly wound with wool yarn, cased in four pieces of dyed leather with a stitched seam. |
| Bowling ball | A dense shaped weight block inside a filler, wrapped in a polyester, urethane or reactive resin coverstock. |
- Tennis ball A pressurised hollow shell of vulcanised rubber, covered in a glued-on wool and nylon felt.
- Golf ball A moulded polybutadiene rubber core inside an ionomer or urethane cover, dimpled all over.
- Soccer ball Polyurethane outer panels over a laminated fabric backing, wrapped around a latex or butyl bladder.
- Basketball A pebbled composite or leather cover over nylon winding and a butyl rubber bladder.
- Cricket ball A cork core tightly wound with wool yarn, cased in four pieces of dyed leather with a stitched seam.
- Bowling ball A dense shaped weight block inside a filler, wrapped in a polyester, urethane or reactive resin coverstock.