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Objective Lens Effective Diameter: 25mm Magnification: 8x Relative Brightness: 9.6 Twilight Factor: 14.1 Eye Relief: 16.0mm Real Field...

The Celestron Heavy-Duty Alt-Azimuth Tripod is the perfect support for hands-free viewing through giant binoculars, a spotting scope, or a small to...

Whether glassing for rams above the tree line or calling shots at the range, the Vortex Razor HD 27-60x85 straight spotting scope gives you the opt...

The Sky-Watcher EVOLUX 62ED is a compact, lightweight ED doublet apochromatic refractor designed for wide-field astrophotography. It uses a matched...

The Sky-Watcher EVOSTAR 72ED APO is a compact apochromatic doublet refractor built around a two-element, air-spaced lens assembly that minimizes fa...

Of the more than 49,000 species of spider worldwide, some 4,000 are in North America. Spiders of North America explores more than 500 of the most c...

The SVBONY SV48P is a 90mm air-spaced doublet achromatic refractor with a fast 500mm f/5.5 focal length, designed as a versatile wide-field instrum...

The SVBONY SV550 80mm is an apochromatic triplet refractor combining an S-FPL51 extra-low dispersion element with two correcting lenses to deliver ...

The SVBONY SV503 102F7 ED is a doublet refractor built around an S-FPL51 extra-low dispersion objective that virtually eliminates chromatic aberrat...

The SVBONY SV503 80ED F7 is a doublet refractor built around an S-FPL51 extra-low dispersion objective that virtually eliminates chromatic aberrati...

The SVBONY SV503 70F6 ED is a doublet refractor built around an S-FPL51 extra-low dispersion objective that virtually eliminates chromatic aberrati...

Magnification 8 to 16x Objective Lens Diameter 21 mm Angle of View 8x: 5° (Actual)16x: 3° (Actual) Field of View 16x: 157.5' @ 1000 yd / ...

For use with any type of seed. 2-pound seed capacity.

The Perky-Pet Mason Jar Wild Bird Waterer offers fresh, clean water to attract a larger variety of birds while adding a rustic look to any bird lov...

Capacity 8oz

Capacity 32 oz

Blue glass vintage bottle with embossed starburst accents Wide mouth for easy filling and cleaning 4 flower feeding ports 16 oz nectar capacity

Uv stabilized polycarbonate feeder tube keeps the seed level visible at all times Internal seed baffle directs seed to an additional seed port loc...

Twist-lock lid prevents squirrels from opening the feeder and eating seed Wire barrier keeps squirrels at a distance from the feeding ports 8 feed...

Aspects' ingenious, patented design protects all Aspects 2-3/4 to 3-1/4 tubes from rain and snow. The Tube Top simply slips over the bail wire and ...

55 cm human torso model giving students a hands-on experience examining the body's major systems. The male and female reproductive organs are inter...

Life-size human heart mounted on a base, for anatomical study or patient education. The heart lifts off its stand and separates into 2 parts; the a...

A robust, truly squirrel-proof bird feeder for custom bird feeding. The Squirrel Buster® Legacy stores 2.6 lb of seed and features 4 seed ports plu...