Specification: Product Name: Photovoltaic Module Mud Discharge Clamp Material: Plastic Color: Black Size: 3cm, 3, 4cm Uses: Dust Removal, Drainage Features: 1 Automatically remove stagnant water 2 Increase strength technology and upgrade the carrier life of solar panels 3 Easy to put in Automatically snaps on to the solar panel body 4 Polymer material, anti-aging, high/low temperature resistance, long-term open air use 5 Suitable for photo voltaic panel body thickness: 30mm, 35mm, 40mm Package includes: 5/10/30/60 PCS Photovoltaic Module Mud Discharge Clamp Note: 1 The real coloration of the item could also be slightly diversified from the photographs shown on website caused by many factors comparable to brightness of your computer screen and lightweight brightness 2 Please enable slight guide measurement deviation for the data