Great metal tips from Chiagoo, these shorter tips can accomodate working with shorter cables for hats and sleeves etc. Super sturdy. You will need to use the mini size cables for needles sizes 2mm - 2.5mm, the small size cables for tips 2.75 - 5mm and the large size cable for sizes 5.5mm and above. Please also note that Chiagoo also make 13cm tips, which fit with cables 55cm and longer