DELight 100Pcs Clay Tile Roof Clips feature a wide opening with ridged edges, simply clip it on the roof for quick and easy installation without tool Designed to securely hold both C7 and C9 Christmas light bulbs, ensuring a universal fit Crafted from weather-resistant, UV-protected PP, last through even the toughest winter weather The 100 pcs holiday light clips help create a dazzling display across your entire clay tile roof Overall Dimension(LxWxH) 4 1/8' x 13/16' x 1 1/4' (10.5 x 2 x 3.2 cm)