Wick size and material: The wick measures approximately 13.78 inches (35 cm) in length and 0.5 inches (1.27 cm) in diameter. Made of fiberglass material, the replacement wick is safe, odorless, provides a long lasting flame, and has oil absorption and burning efficiency. wick holder: Crafted from durable brass, the torch wick holder is sturdy and resistant to deformation or breakage. It has a length of approximately 1.34 inches (3.4 cm) and a minimum diameter of about 0.67 inches (1.7 cm). Each wick holder comes with 3 washers for better attachment to bottles. Convenient to use: Simply insert the wick into the torch wick holder until 0.25 to 0.5 inches of the wick is exposed above the holder. Then insert the wick kit into the glass bottle. The operation is easy, and the brass cap allows for easy removal of the flame for future use. Versatile usage: The bottle torch kit is suitable for most standard glass bottles, such as wine bottles. It can burn continuously and repeatedly, making it suitable for garden bars, patios, fences, porches, and outdoor use.