What is the power consumption of this unit over a week of continuous use? (in usa on 110v). thank you.

This takes .3 Amps, so (watts = amps x volts) OR watts = .3 x 110 which equals33 watts. Now for one week would equal 33 watts x 7 days x 24 hours =5544 watts or 5.54 kilowatts for one week.At $.16 per kilowatt it comes to $.89 per week.

What the difference between this and the starter kit?

There are two main differences:The Hobby Rock Tumbler has a rubber tumbling barrel with a stainless steel cap, which reduces noise and is more durable. The Starter Kit Rock Tumbler has a plastic barrel. The Hobby Rock Tumbler also has a keypad for setting the number of days you would like it to tumble, where as the Starter Kit Rock Tumbler's setting options are on/off. Thank you for your inquiry.

What pound tumbler is this product?

Dearest National Geographic.... why would you only send 1# of rocks with a two pound tumbler?

Can i buy extra grit without the rocks. we have many rocks from "mining" gemstones that i would love to polish. what do you recommend?

I recommend you follow the rock tumbler hobbiest MIchigan Rocks on Youtube. He's a good wealth of information for anyone getting into rock tumblers. He and other's mention that the polish from National Geographic is not good. I would go with rock tumbler polish offered by Polly Plastics.

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[ナショナルジオグラフィック]National Geographic Hobby Rock Tumbler Kit NGHOBBYTUMBLER [並行輸入品]

Product ID: 736143246

Details

サイズ
ワンサイズ
テーマ
Rock Tumbling
ブランド
Blue Marble
商品寸法 (長さx幅x高さ)
35.1 x 12.4 x
対象年齢
子供

🔇Noise-reducing stainless steel lid

⏲️Auto shut-off timer for safety

⚙️Powerful motor for years of use

$229.79

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Turn raw stones into dazzling treasures—because your creativity deserves the best!

STEM MEETS STYLE - Educational and fun, this kit blends science with creativity, making it a must-have for the modern hobbyist.
SAFE SMART OPERATION - Automatic shut-off timer ensures worry-free use, perfect for busy professionals and curious kids alike.
WHISPER QUIET CRAFTING - Stainless steel lid minimizes noise and prevents leaks, so your workspace stays peaceful and clean.
ALL INCLUSIVE GEMSTONE KIT - Includes 0.5 lbs of 9 unique gemstones and 4 grit grades—everything you need to create stunning jewelry.
ENDLESS ROCK POLISHING POWER - Durable, high-quality motor built to last for years of creative exploration.

The National Geographic Hobby Rock Tumbler Kit features a robust motor, noise-reducing stainless steel lid, and an automatic shut-off timer. It includes half a pound of nine different gemstones and four grit grades, enabling users to polish rocks into beautiful jewelry. Designed for educational STEM fun, this durable and quiet tumbler is perfect for hobbyists of all ages seeking a hands-on creative experience.

Specifications

ASIN	B01LQCIL88
Amazon 売れ筋ランキング	おもちゃ - 69,599位 ( おもちゃの売れ筋ランキングを見る ) 岩石・鉱物の実験・科学 - 79位
GTIN (Global Trade Identification Number)	00816448020421
UPC	816448020421
おすすめ度	4.5 5つ星のうち4.5 (24,856) var
お客様の年齢層	子供
サイズ	ワンサイズ
サブブランド	National Geographic
テーマ	Rock Tumbling
ブランド名	Blue Marble
メーカー型番	NGHOBBYTUMBLER
ユニット数	1.00 個
商品の重量	5.07 ポンド
商品本体サイズ	35.1 x 12.4 x 20.5 cm
型番	NGHOBBYTUMBLER
教育目的	STEM
材質タイプ	ステンレス鋼
組み立て式	いいえ

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$229.79

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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