Three children in the United States have accidentally chopped off a fingertip after because of a fault with their stroller and two adults have reported smashing or cutting their fingers.

The horrific injuries happened after they got a finger jammed in a hinge mechanism used to adjust handlebars on Kolcraft Contours Options products and five models have since been recalled.

Around 36,000 defective strollers were sold in the U.S. and Canada between January 2006 and June 2012, according to the Consumer Product Safety Commission.

The horrific injuries happened after they got a finger jammed in a hinge mechanism used to adjust handlebars on Kolcraft Contours Options products and five models have since been recalled

Pushchairs with model numbers beginning ZL002, ZL005, ZL008, ZL015 and ZL018, will be taken down from store shelves, CNN reported and free repair kits are being made available.

Kolcraft has urged worried parents to stop using their stroller immediately and contact the company for more information.

The strollers are made in China and come in both three and four-wheel options, costing around $150.

They have been sold nationwide at juvenile product specialty stores, as well as online at Amazon.com, Target.com and ToysRUs.com.