Trinity Candle Factory Premium Scented Blueberry Fields - Pillar Candle - Square - 4x4. This 4x4 Square Pillar Candle is premium scented for maximum fragrance throw. With a 100-110 hour burn time, cotton wick and premium scent, this candle is an absolute must. This blueberry candle smells like a oven bake huge plump, steaming hot blueberries. Wow! 100% Satisfaction Guarantee.