One of the models of the spikes for tomatoes is made of PVC material and the other model is from bamboo

PVC - basic spikes 
Height : 1.70 meters 
Quantity : 25 pcs 

PVC - pointed : 
Height : 1.70 meters 
Quantity : 10 pcs 

Bamboo spikes :
Height : 1.80 and 2.10 meters 
Quantity : 50 pcs