This is a support frame used to build a small insulation shed by yourself. It is arched so that you can directly insert it into the soil, saving you time. It is made of plastic and iron materials, strong and durable, and will not break easily. This shelf has a very high usage rate and can be used all year round. It effectively prevents freezing, frost, sun protection and . Features -Color: Green. -Material: Iron, plastic. -Size: About 48.00X47.00X1.10cm/18.86X18.47X0.43inch. -Made of iron and plastic materials, it . -Easy to assemble, adjust the shelf to the arc you need, and then insert it into the soil. -It can be used with different types of mulch to protect plants in all seasons. -It can play a role in , rain and sun, allowing plants to grow better. -It can prevent freezing and frost, increase temperature and humidity, extend vegetable planting time, and shorten vegetable growth period. Package list: 10 x support frames