Premium Ink: IJIANG The window markers are made of top quality water-based ink, neon colors, dust-free, non-toxic and odorless; the ink capacity is larger than ordinary markers. No longer need to worry about running out of ink at the critical moment, write smoothly on non-porous surfaces and be the right hand of teachers, students, artists, office administrators, and restaurants Innovative Design Of The 3-In-1 Nib: 8 Vibrant color jumbo chalk markers, each with a 10mm 3-in-1 nib in vibrant colors; The chalk pen have a 3-in-1 nib for all your drawing needs, and rectangular nib allows you to adjust the angle of the nib to get wide, thick and thin lines; product contains eight vibrant colors: purple, blue, green, orange, pink, red,yellow, white Easy to Clean: These liquid chalks can be easily erased by simply wiping with a damp cloth or towel, making the painted area disappear without leaving stains. However, it is worth noting that some chalkboards are porous, so it is recommended that you try them on a small area first Suitable for a Variety of Surfaces: IJIANG Whether used as car window markers, house window and mirror markers, bistro chalkboards, whiteboards, LED writing boards, light panels, glassware, plastics, metal,festival banners, posters markers and a variety of DIY crafts these chalk markers can be used on any non-porous surface, making them the perfect companion for your creative expression Fun To Use: IJIANG Erasable chalk pens are great art drawing supplies for personal crafting or art creation. These chalk pens work perfectly on non-porous surfaces, and you can also use them to label jars and containers or to add decorative touches to your home.Recommended age: 14 years and above Suitable for a Variety of Surfaces：Whether used as car window markers,house window and mirror markers， bistro chalkboards, whiteboards, LED writing boards,light panels, glassware, plastics, metal,festival banners, posters markers and a variety of DIY crafts these chalk markers can be used on any non-porous surface, making them the perfect companion for your creative expression Innovative Design Of The 3-In-1 Nib：8 pack jumbo chalk markers, each with a 10mm 3-in-1 nib in vibrant colors；The chalk pen have a 3-in-1 nib for all your drawing needs, and rectangular nib allows you to adjust the angle of the nib to get wide, thick and thin lines Easy to Clean：These liquid chalks can be easily erased by simply wiping with a damp cloth or towel, making the painted area disappear without leaving stains. However, it is worth noting that some chalkboards are porous, so it is recommended that you try them on a small area first Premium Ink：The window markers are made of top quality water-based ink,pastel colors,dust-free, non-toxic and odorless;the ink capacity is larger than ordinary markers. No longer need to worry about running out of ink at the critical moment, write smoothly on non-porous surfaces and be the right hand of teachers, students, artists, office administrators, and restaurants Fun To Use：IJIANG erasable chalk pens are great art drawing supplies for personal crafting or art creation. These chalk pens work perfectly on non-porous surfaces, and you can also use them to label jars and containers or to add decorative touches to your home!