Pictures shown are mature trees for sake of reference. 
This product is sold in transplant size bundles of 25.
(Not full grown)
 
This native tree has lovely white bark and yellow fall color, but is not a good tree for tough sites. It demonstrates some resistance to bronze birch borer (BBB). 
 
Family (English)Birch
Family (botanic)Betulaceae
Foliage: Deciduous (seasonally loses leaves)
Native locale: North America
Size range: Large tree (more than 40 feet)
Mature height: 50-70 feet
Mature width: 19-45 feet
Light exposure: Full sun (6 hrs direct light daily)
Hardiness zones: Zone 2 - Zone 7
Soil preferenceAcid soil, Moist, well-drained soil
TolerancesAlkaline soil, Clay soil, Occasional flooding, Road salt
Shape or form: Round
Growth rate: Fast
Transplants well: Yes
Planting considerations: Intolerant of pollution
Wildlife: Game birds, Insect pollinators, Sapsuckers, Small mammals, Songbirds
 
Excerpt from The Morton Arboretum: https://mortonarb.org/plant-and-protect/trees-and-plants/paper-birch/