The esters from the Pineapple flavour work synergistically with Butyric Acid. Butyric Acid is a carboxolic acid with a short carbon chain, in simple terms this means it is incredibly soluble in all water temperatures and carp can detect it at even the lowest of levels.The mega-buoyant needle friendly pop-ups will stay popped up for several days. The 12mms are great for zigs and snowman presentations, whereas the 16mms are ideal for the ultra-popular chod rigs. While the Dumbell Wafters have been carefully balanced to counteract the weight of the hook and rig.These can be a great way of scratching out a bite on an otherwise unproductive day and most carp anglers will carry some emergency yellow pop-ups. A proven winner and a winter favourite, these are great as singles or over scattered boilies.