Amazon customers have been rushing to purchase a set of hand warmers that shoppers are calling a "life saver" during chilly weather .

The OCOOPA UT3 Magnetic Rechargeable Hand Warmers have had their cost slashed from £23.99 to £19.99 as part of a time-limited offer. Featuring a slender design that slots comfortably into hands, gloves and pockets, these warming devices reach temperature in merely five seconds and maintain heat for four to eight hours based on your chosen setting from the three available options, the manufacturer claims.

There's no need to worry about cables or batteries whilst out and about - simply recharge them once you return home using the included USB-C lead.

The hand warmers feature magnetic technology allowing them to stick together to prevent misplacement, a

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