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Dullahan D4 7 Tower-S is a Balance Type Beyblade released as part of the Burst System as well as the SlingShock System. It was released in western countries as a part of the Dark-X Nepstrius N4 & Dullahan D4 Dual Pack for CAD$19.99 in Canada, USD$14.99 in the United States, and AUD$29.99 in Australia.
Energy Layer - Dullahan D4
Main article: Energy Layer - Dullahan D4
Dullahan D4 is a Balance Type Energy Layer that's primarily round in shape. Its design consists of four large blades that create an overall round, diamond-like shape, akin to a rounded and reversed Luinor L4. Each of these blades are slightly lowered at the fronts, and slightly raised at the ends, with each one having a small protrusion at the front, a small one on the front side, and a small and large one at the ends, while the middle of the blades is round and smooth. In the center of the Layer are two armored heads on either side that are from a sideways profile; both resembling the helmets of knights. These details represent the Layer's namesake; Dullahan, the headless horseman of Irish mythology. As a part of the SlingShock System, Dullahan D4 features regular plastic instead of metal in its design; in this case, each of the four blades have metallic-painted plastic on top of them. The inclusion of plastic makes Dullahan D4 fast enough to ride the Rail System of the SlingShock Beystadium/Rail Rush Beystadium, albeit at the cost of being lighter than most SwitchStrike Layers.
Akin to most other Cho-Z Layers, Dullahan D4 is compatible with a Level Chip that can be fitted underneath the Layer.
Forge Disc - 7
Main article: Forge Disc - 7
7, like other odd numbered Core Discs, is an asymmetrical, elliptical disc that can facilitate a Disc Frame. 7 is designed similar to Gravity or Heavy, with seven designs jutting out that resemble the number "7". At first glance, the Disc looks unbalanced, but in reality, two of the sections on one side being halves makes it balanced. 7 is one of the heaviest Discs thus far, outclassed only by 10 and 0, and has a ideal weight distribution for Stamina Combinations. Its high Outward Weight Distribution grants it not only the highest Stamina potential out of all other Core Discs, but its weight grants it high Attack and Defense potential without the severe Burst Risk of 8. With the use of Disc Frames, 7 can be used to great effect in any Combination.
Performance Tip - Tower-S
Main article: Performance Tip - Tower-S
Tower-S, as its name implies, is a SlingShock Performance Tip based off of Tower. However, unlike the original Tower, Tower-S' automatic "Height Change" gimmick is disabled, and is instead tied with the Performance Tip's "SlingShock Mode", along with the tip itself being flat and made of a wider diameter than Tower's semi-flat tip. As a part of the SlingShock System, Tower-S can be manually altered to switch between "Battle Ring Mode" and "SlingShock Mode"; in this case, by twisting the tip clockwise, pulling it downwards, and twisting it clockwise again, and vice-versa.