【Types of needles】 The leather set includes straight and strong needles for leather, curved needles for mattresses, there is also a punch for leather for easy sewing【Helpful tools】 1 awl for efficient felting with a wooden support that makes it easy to grip and really relieves your fingers over time, preventing cramps【Usage】 For sewing, impeccable for sewing thick fabrics, leather and thin fabrics. The included black thread is perfect and strong. ideal for sewing leather sofas or armchairs, for leather in car steering wheels, curved needles for sewing the edge of a mattress【Good for beginners and professionals】 Ideal starter kit for leather work, these leather craft kits are perfect tools to get started. It is also a great gift, a wonderful choice for families, friends or anyone you want to give them as a gift.【Various sizes】 7 pcs stainless steel sewing needles vary in size and shape, including 1x 50mm needle, 1x 42mm needle, 1x 56mm needle, 1x 87mm needle, 1x 75mm needle and 2x curved needles (50mm and 75mm respectively).