Ready-made jelly in 5 different flavors and in two packs of 100 and 48 

Its halal status depends on the nature of raw materials used in its manufacture. Most gelatin is one of two types: Type A gelatin is exclusively made from pork skins, and is hence Haram for Muslims to use. Type B gelatin is made either from cattle and calf skins or from demineralized cattle bones.
Jello is not the healthiest food option, but eating it in moderation likely won't hurt you. Even though it contains artificial ingredients and has very little nutritional value, many people still eat jello because they enjoy its flavor, consistency, and convenience.