How durable are the plastic clips?
A. The clips are made with high impact plastic providing total luminous transmittance with very low haze factor and are virtually indestructible. Aside from smashing it to pieces with a hammer or intentionally stomping on the product they can withstand repeated blows from a garden shovel, spade or snow shovel. You can ride a bicycle over them, walk on them even drive a car over them when they are installed properly at the edge of a driveway (not laying on the driveway under the tire though, please do not try this). Under normal use the clips can take quite a beating.
