Soft screws for fixing on the toilet seat Rubber quality, smooth surface Excellent toughness, does not break easily Ceramic hole for fixing the closed seat White plastic card diameter: 2.8 cm Extensible sphere diameter: 1.7 cm (undeveloped state), length 4 cm Material: black rubber ball (elastic) / ABS plastic (round cards) / stainless steel (screws) Contents: 1 pair of screws