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Children are precious.

koilys, the parent & child connecting wristlet, helps to keep your child nearby without limiting their natural curiosity and independence.

Unlike most child harnesses, koilys connects the adult and child by the wrist. Perfect for toddlers ages 1-4 years old, each wristlet is made of soft, breathable cotton and is easy to adjust.

Created to keep children close in crowded areas, koilys works great in amusement parks, grocery stores, airports, shopping malls, new vacation destinations, and busy intersections.


Keep them close without holding them back.

Our busy world—its traffic, strangers, and every day hazards—isn’t built for little ones. As much as we try to keep an eye on them, sometimes circumstances make it challenging to do so.

We want our children to try new things, learn to navigate their environment, and have adventures, but we also want to keep them safe—and koilys can help.


koilys make GREAT gifts!

$1 from every koily sold will be donated to The Children's Defense Fund

Children's Defense Fund (CDF) is a nonprofit agency that advocates for children's rights. The Children's Defense Fund pursues policies and programs that provide health care to children, reduce the impact of poverty on children, protect children from abuse and neglect, and provide children with educational opportunities.

product features

Comfortable Wristband

Each band is made of soft, breathable, cotton and is easy to adjust. The child band supports a wrist circumference of ~4.5-6 inches and the adult band supports a wrist circumference of ~5-8 inches.

Designed With Purpose

The child band is manufactured with a secondary layer of high quality velcro, which adds an additional layer of security. Each band has 360° rotating power, allowing for more mobility.

Durable Framework

koilys extends up to 5 feet, giving your child room to explore, while maintaining your peace of mind. The coil is made of stainless steel and is enclosed by plastic tubing for increased durability.

Ready to own your koily?


Meant for children ages 1-4 years old, koilys serves as an additional layer of security for children who are learning how to roam within appropriate boundaries. However, here are a few things to keep in mind. This is not a safety device and will not prevent falls or other injuries from occurring. Users must never pull/tug on the wristlet. Always utilize under adult supervision. Keep out of children’s reach when not in use. Do not utilize the product if it is damaged. Do not make modifications to the product. Exercise caution when simultaneously utilizing the product and carrying items. Beware of usage near automatic doors, elevators, escalators, and other machinery. koilys does not prevent children from falling down and can’t be used as a walking training device. koilys will not be held responsible for any injuries that result from the use or misuse of this product.