材质：PP塑料（韧性好，不变色）

尺寸：5.1*2.2cm

规格：一个钥匙牌+一个钥匙圈+可替换书写纸+书写纸透明保护片

颜色：红色，黄色，深蓝，绿色、黑色、白色 常规六色
Material: PP plastic (toughness is good, do not change color)

Size: 5.1 * 2.2cm

Specifications: a key card + a key ring + can replace the writing paper + writing paper transparent protective film

Color: red, yellow, dark blue, green, black, white conventional six colors